In building construction, allowable bearing stress for milled surfaces, including bearing stiffeners, and pins in reamed, drilled, or bored holes, is Fp= 0.90Fy, where Fy is the yield strength of the steel, ksi (MPa)
For expansion rollers and rockers, the allowable bearing stress, kip/linear in (kN/mm), is
Fp = ((Fy– 13)/20) 0.66d
where d is the diameter, in (mm), of the roller or rocker. When parts in contact have different yield strengths, Fy is the smaller value.
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